A portable application can be run from a removable drive (USB flash drive, iPod, portable hard drive, etc) on any Windows computer without installation.
You will carry the program with settings on removable drive and don't modify settings on host computer.
On Vista and above turn off User Account Control (UAC) or run launcher as admin.

Extract and run WeBuilderPortable.
Language set by launcher according UserDefaultLang (English, Dutch, French, German, Hungarian, Russian).
Tools/Preview In Portable Firefox, Opera or Chrome if found.
Settings of installed WeBuilder should be preserved.